Strip-serving machine



Jan. 16, 1923.

' s. B. EMMERT.

STRIP SERVING MACHINE.

2 SHEETS SHEET I.

man MAR'.19,1919.

AS; MYP

' Jan. I6, 1923. S. B. EMMERT.

STRQP'SERVING MACHINE.

2,5HEETS-SHEEI 2.

FILED mm'. 19. m9.

$1 afto'cnev Patented Jan. 16, 1923.

UNITED STATES SAMUEL B. EMMERT, OF YONKEBS, NEW YORK, ASSIGNOR, BYIELESNE ASSIGNMENTS TO'NASEUA GUMMED & COATED PAPER COMPANY, OF NASHUA,NEW HAMPSHIRE STRIP-SERVING MACHINE.

Application filed March 19, 1919. Serial No. 283,585.

1 '0 all whom it may concern:

Be it known that I, SAMUEL B. EMMERT, a citizen of the United States,and a resident of 119 Morris Street, Yonkers, Vestchester 5 County, NewYork, have invented new and useful Improvements in Strip-ServingMachines, of which the following is a specification.

The present invention relates to machines for serving strips of adhesivegummed tape.

The improvements may conveniently be embodied in a machine adapted tofeed, cut and moisten strips of tape and to deliver the same in anadhesive condition to an operator for immediate application to apackage, box or the like. In U. S. Patent No. 1,384,082, to Charles G.Mortimer there is illustrated and disclosed an apparatus adapted tofeed, cut, moisten and deliver strips of tape in adhesive condition toan operator for the same purpose. lhe present application discloses anapparatus embodying important improvements over the apparatus describedin the aforesaid patent.

One object of the present invention is to insure accurate operation ofthe machine. Another object is to simplify the feed controlling elementsin such a manner that they are not readily rendered inoperative bybreakage or by rapid or careless operation.

One embodiment of my invention is illustrated in the accompanyingdrawings in which- Figure 1 is a side elevation with portions brokenaway to illustrate parts occupying relatively interior positions.

Figure 2 is a top plan view.

Figure 3 a view partly in transverse vertical section, at line 3-3 ofFigure 2, show- 4 ing more particularly the strip severing mechanism.

Figures t and 5 are fragmentary views, somewhat enlarged, illustratingdetails of the feed controlling mechanism. Fig. 6 is a detail view.

According to the gummed tape in roll form may conveniently be supportedin a suitable housing 1 mounted upon the base 2 of the apparatus. The

frame 3, also mounted upon the base 2 is adapted to carry tape feedingmeans, tape severing means and tape moist-ening means.

The tape feeding means may include a driven roller 4 securely mounted ona shaft 5 and adapted to co-operate with a second drawings, a supply. of

roller 6 'journaled in bearings 7 and adapted to be held in yieldingengagement with said roller 4.

The strip severing means may include a fixed blade 8, preferably mountedabove the normal path of the strip of tape as it leaves the feedrollers. A blade 9 is pivotally mounted to swing from a position belowthe path of the tape and to co-operate with the fixed blade 8 for thepurpose of severing the strip. A suitable spring 10 engages the swingingblade 9, tending to press it normally to a position below the path ofthe tape. v

The moistening means may include a tank 11 adapted to holdwater or othersuitable moistening medium which may conveniently be poured into saidtank through a port 1"). projecting from the forward end of saidtank andforming a substantially funnel shaped opening thereto. A moisteningroller 13 may be mounted to rotate within said tank and in contact withthe moistening contents thereof, said roller being preferably formed. ofa porous clay material. The tape supporting means, part of which hasbeen heretofore described, may also include means for maintaining thetape supply in proper operative alignment with the feeding, severing,andmoistening means. The aligningmeans may include a plate or disk 14,as shown in detail in Fig. 63, secured to a supporting rod 15 slidablymounted in a suitable bearing 16. The supporting rod 15 may be providedwith a plurality of peripheral grooves 17 adapted to engage a suitableyieldable stop member, as a ball bearing 18, normally he d in springpressed engagement with said supporting rod 15 by means of a coiledspring 19. The degree of pressure of said spring 19 upon the ballbearing 18 may conveniently be regulated by means of a set screw 20against which one end of said coiled spring may be seated. It iscontemplated that' the tape supporting means in cluding the alignmentmaintaining apparatus just described. shall permit the use of tapes ofdifferent wi lths. Thus, it the tape is very narrow, the disk 1 may bepushed inwardly into operative engagement with the roll of tape and beheld in position against accidental displacement by engagement of theball bearing 18 with the disk supporting rod 15. Similarly, it a roll.of wider tape to be used in the device, the disk 1% may .a hand operatedlever :22 pivotally mounted 2-3 and preferably arranged to co-operatewiththe severing mechanism to automaticelly sever strips of tape. Forthis purpose, the lever arm engages the underside of the swinging blade9 andnormally presses the same upwardly into operative relation to thefixed blade 8. A suitziblc spring incinher co-operate with the lever armto actuate the same and ts hold it in. norincl blade engaging position,as indicated in dotted lines Figure 1.

Since the severing stroke of the blade 9 it into a position above thepath of p, it is desirable to provide means seeing the blade anddropping it to elation oeneath the path of the strip to the nextsucceeding strip feeding To accomplish this, the parts 1 ged and relatedthat the feed rollers will remain inoperative during s predeterminedinitial portion of the downward roke of lever arm 22.

Actual feeding movement of the feed rollersmsy he efi'ected by rotatingthe shaft 5. For this purpose, said shaft is provided with a pin 25. Aratchet 2-6, loosely mounted upon shaft 5, is provided with projectinglugs 2! edepted to engage said pin 25 in either direction of rotation.To actuate the 26, as spring pressed pawl 28 may be mounted on esuitable pawl carrying memher capable of being rotated to eficct revolv-Eng movement of the pawl. In the present apparatus, Figure 4:, the pawlcarrying member is shown a cylindrical cap 29, in which imwl :28,suitably supported by apivot 30,

idingly engages ratchet The cylindricsl cap 29 is secured to a pinion 31also loloseh supported on the shaft and posi' tions mesh with a rock 32adapted to operatic with the lever arm ,In. operation, when the leverarm 22 is de pressed. rack 32 actuetes pinion 31- which in turn rotatescylindrical cssing29, thus revolving the spring pressed pawl 28. Pewl.28 moves ratchet 26 without actuating sheft 5 until the projecting lugs27 engage the pin 25. This period during which the ratchet jtnovesrelatively to the shaft 5- is. the period during which swinging blade 9is released into its lower position beneath the path of the strip oftepe. At this point, and with continued downward movement of the lever22, projecting lugs 2'; bear against pin end thusro; shaft 5 which in.turn a" to feed strip forward. The downward stroke of lever arm 22 maybemade to any desired degree within the limits of the machine, dependingupon the length of strip desired to be fed from the supply of tape; Whenthe desired amounthas been fed out and moistened, downward pressure uponthe lever arm 22 may be discontinued and the lever arm released, thuspermitting it to be thrust Lip-- wardly by spring 24 into actuatingcontact with the swinging blade 9.

At the end of the downward stroke of lever arm the projecting lugs 27are in she-ft actuating engagement with the pin 25. However, when thedirection of the lever arm is reversed, ratchet :26 is rotated in adirection opposite to its feed roll driving direction. Pawl is held innormal spring pressed engagement with said ratchet and therefore bothmove in the same direction until the projecting lugs :27 encounter pin25. Beyond this point, in the reverse rotation of ratchet 2c theengagement between pawl 28 and ratchet 26 is not secure enough to effectreverse movement of the shaft 5. Accordingly, pawl 28 then movesrelatively to ratchet In this manner, the parts are readjusted to permitthe blade 9 to drop beneath the path of the strip upon the initialportion of the next succeeding downward stroke of lever arm 22 andbefore the actual feeding of the tape takes place.

While the machine described and illustrated in the patent hereinabovereferred to was intended for the same purpose as the present apparatus,I have eliminated some of the more fragile members which form a part ofthat former structure, such as exposed springs, with the result that thenew apparatus may be more effectively operative than the former machine.

' I claim as my invention:

1. In a machine for serving strips of adhesive tape, the combination ofmeans for supporting A roll of tape and means for feeding said tape,said feeding means including a shaft, atape engaging: roller mountedthereon, a ratchet loosely mounted on said shaft and capable of limitedrotary movement relatively thereto, means for actuating said ratchet torotate the shaft and a tape cutting knife operated by saidratchet-actuating means.

2. In a machine for serving strips of adting knife operated by saidratchet-actuating means.

3. ]n a machine for serving strips of adhesive tape. the combination ofmeans for supporting a roll of tape and means for feeding said tr e,including a shaft, a tape engaging roller mounted thereon. a ratchetloosely mounted on said shaft, means between said shaft and the ratchetfor permit-ting limited relative rotary movement therebetween, a pawlmounted to engage said ratchet to rotate the shaft in one direction andto rotate the ratchet alone to a l mited extent in the oppositedirection. means for actuating said pawl and a tape cutter operated bysaid pawl-actuating means.

4. In a machine for servingstrips of adhesive tape. the combination ofmeans for sTipporting a roll of tape and means for 'feeding said tape,including a shaft, a tape engaging roller mounted thereon. a ratchetloosely mounted on said shaft, a pawl to engage said ratchet, means toactuate said pawl. stop means between the shaft and the ratchet wherebypawl actuated movement of the ratchet in one direction may rotate theshaft and movement of the pawl in the opposite direction ma rotate onlythe ratchet to a limited extent, whereupon continued movement of saidpawl in said opposite direction is relative to both the ratchet and theshaft, means for actuating saidpawl, and atape cutter operated by saidpawl-actuating means.

In a machine for serving strips of tape, the combination of means forsupport ing a supply of tape in roll form, means for feeding said tapeand means for maintaining said tape supply in operative alignment withsaid feeding means including a plate movable axially of said supportingmeans and means for holding said plate in operative engagement with theroll of tape at various points along said supporting means whereby tapesof different widths may be accurately guided to said feeding means.

(3. In a machine for serving strips of tape. the combination of meansto; supporting a supply of tape in roll form, means for feeding saidtape .and means for maincluding a blade swingable upwardly by en-'gagement therewith of said actuating means to a position above the pathof the tape in severing thelsame. and a lost motion connection betweensaid feeding means and said actuating means to permit said blade toreturn to a position beneath the path of the strip prior to the feedingof the next sneceeding strip.

h. In a machine for serving strips of tape. the combination of means forfeeding tape from a roll, tape severing means including a bladeswingable across the path of the tape. a lever normally maintaining saidblade in cutting position and movable in one direction to operate saidtape feeding means and in the opposite direction to actuate said tapesevering means. and means to permit an initial relative movement hetween said lever and said tape feeding 'means to allow said blade toclear the path of the tape.

5). In a machine for serving strips of tape. the combination of meansfor feeding tape from a roll, tape severing means including a swingableblade. a pivoted lever fo' actuating said tape feeding neans andnormally engaging said blade to maintain the same above thepath of thestrip. means permitting an initial movement of said lever relative tosaid tape feeding means thereby to drop said blade below the path of thestrip before aetnation of the tape feeding means.

Signed at Xew York city. in the county of New York and State of New Yorkthis 28 day of l ebrnarv. 191$).

SAMUEL B. EMLWIERT.

